Thermal management device for vehicle

Abstract

A thermal management device for a vehicle includes heat medium circuits, a reserve tank, and a connector. The heat medium circulates through the heat medium circuits separately. The reserve tank is configured to separate an air bubble contained in the heat medium from the heat medium. The connector allows the reserve tank to come in communication with the heat medium circuits selectively. As such, an occurrence of the heat loss in the degassing performed in the reserve tank can be suppressed with the thermal management device for a vehicle including the heat medium circuits.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]The present application is based on Japanese patent application No. 2016-032051 filed on Feb. 23, 2016, the content of which is incorporated herein by reference.TECHNICAL FIELD[0002]The present disclosure relates to a thermal management device for a vehicle.BACKGROUND ART[0003]As a conventional technique, Patent Literature 1 describes a cooling system provided with a plurality of cooling circuits. The conventional technique is provided with a supercharger cooling circuit and an engine cooling circuit.[0004]In the conventional technique, a common reserve tank is connected to the supercharger cooling circuit and the engine cooling circuit. The common reserve tank performs pressure management in the supercharger cooling circuit and the engine cooling circuit and performs degassing for a coolant. The degassing for the coolant may mean removing air from the coolant by separating the coolant into gas and liquid.PRIOR ART LITERATUREPatent Literat...

AI Technical Summary

Benefits of technology

The patent is about a thermal management device for vehicles that includes multiple heating circuits, a common reserve tank, and a system to prevent heat loss. The goal is to improve the efficiency of the heating system by ensuring effective degassing in the reserve tank without compromising the heating performance of the circuits. By using a system of piping, the device suppresses heat loss and ensures complete gas-liquid separation in the reserve tank without mixing the heat medium from the heating circuits.

Problems solved by technology

In particular, in a system having a high temperature, the cooling performance is largely deteriorated due to the air, which largely affects traveling of the vehicle.

Accordingly, corrosion of pipes may accelerate, and the pump performance may deteriorate, which results in an insufficient flow rate of the cooling water.

In a cooling system provided with an air conditioning circuit, when the cooling water containing air therein flows into an air-conditioning heat exchanger of an air conditioner, an air trapping sound goes through an inside of a vehicle compartment, which gives an occupant an uncomfortable feeling.

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